SEHS Topic 4 Test

What is the muscle contraction where length of the muscle remains the same?

• Isotonic concentric

• Isotonic eccentric

• Isometric

• Isokinetic

What type of movement takes place from Position A to Position B in the diagram?

• Eversion

• Inversion

• Dorsi flexion

• Plantar flexion

The diagram shows a right foot. Which type of movement happens from Position A to Position B?

• Dorsi flexion

• Plantar extension

• Eversion

• Inversion

Which type of contraction occurs in the rectus femoris while performing a squat (moving from position A to B)?

• Isometric

• Isotonic

• Isokinetic

Identify the joint action being performed.

• Extension
• Flexion
• Abduction
• Adduction

Identify the joint action being performed.

• Extension
• Flexion
• Abduction
• Adduction

The centre of mass of a body is the point at which...

• the force of gravity acts with greatest magnitude

• the body is closest to the Earth surface

• it is balanced in all directions

• it is relaxed

Region where a motor neuron comes in close contact with a muscle cell.

• neurotransmitter
• muscular dystrophy
• muscle tension
• neuromuscular junction

Thick filaments are in a myofibril are

• ATPase
• Sarcoplasmic reticulum
• Actin
• Myosin

Thin filaments in a myofibril are

• Sarcomeres
• Sarcoplasm
• Actin
• Myosin